<template>
  <el-container class="home-container">
    <!--    页面头部-->
    <el-header>
      <div>
        <img src="../assets/logo.png" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!--    页面主体-->
    <el-container>
      <el-aside :width="isCollapsed ? '64px' :'200px'">
        <div class="toggle-button" @click="toggleMenu">| | |</div>
        <!--      侧边菜单栏-->
        <el-menu unique-opened :collapse="isCollapsed" :collapse-transition="false" router :default-active="activePath">
          <!--          一级菜单-->
          <el-submenu :index="item.id+''" v-for="item in menuList" :key="item.id">
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{ item.authName}}</span>
            </template>
            <!--            二级菜单-->
            <el-menu-item @click="saveNavState('/'+subItem.path)" :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id">
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  name: 'Home',
  data () {
    return {
      isCollapsed: false,
      menuList: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      activePath: ''
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      // eslint-disable-next-line no-unused-vars
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menuList = res.data
    },
    toggleMenu () {
      this.isCollapsed = !this.isCollapsed
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>

<style lang="less" scoped>
  .home-container {
    height: 100%;
  }
  .iconfont{
    margin-right: 10px;
  }
  .el-header {
    background-color: #373d41;
    display: flex;
    align-content: center;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    > div {
      display: flex;
      align-items: center;
      img {
        width: 60px;
        height: 60px;
      }
      span {
        margin-left: 15px;
      }
    }
  }

  .el-aside {
    background-color: #333744;
    .el-menu{
      border-right:none ;
      background-color:#545c64 ;
      text-color:#fff ;
      active-text-color:#409eff
    }
  }
  .toggle-button{
    background-color: #4a5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    cursor: pointer;
  }

  .el-main {
    background-color: #eaedf1;
  }
</style>
